29-05-13, 04:14 PM
If you prime up the carbs, ign on wait for fuel pump to stop clicking just before you remove them and then keep them verticle, remove the bowl of dodgy no4 and a good one and compare the fuel levels between them. If you loose any fuel out of them getting them out just top them up again out of the frame.
This is better than just a "float level" check, as that don't prove the needle valve is not bloked or other no fuel flow problem / blockage, stuck float as mentioned possible
This is better than just a "float level" check, as that don't prove the needle valve is not bloked or other no fuel flow problem / blockage, stuck float as mentioned possible